Patent GB-190210612-A (GB)
Title: A Machine or Apparatus for Cutting Carcases of Mutton
Inventor: NELSON SIR EDWARD MONTAGUE
Filed: 1902-05-08
Granted: 1903-04-09
Abstract: 10,612. Nelson, Sir E. M., and Dicks, J. May 8. Carcases, treating. - A machine for cutting carcases of mutton is shown in sectional side elevation in Fig. 1. The carcase is placed on a vertically-movable table b, shown mounted on a hydraulic ram b<1> working in a cylinder b<2>. The chine or loin is first partially cut by means of a movable knife e, the table b remaining stationary, and then the table is slowly raised to complete the cut with the knife e, and afterwards quickly raised to a central rigid knife c for splitting the spine, and two adjustable lateral knives d for severing the shoulders. The knife e is connected to sideplates e<1> provided with rollers working in slots e<4>, which are formed in guides e<5> adjustably secured to uprights e<6> and comprise upper inclined portions and lower vertical portions. The plates e<1> are linked to levers g<4>, which are connected by links g<3> to a crosshead g<2>, on a differential ram g<1> of a hydraulic cylinder g. The knives d are mounted on carriers m provided with rollers n guided in slats n<1> of arms n<0>, which are suspended in pairs from spindles n<2> mounted in frames o', each pair being connected by a sleeve n<x>. Lateral adjustment of the knives d is effected by means of slide blocks o' on right and left hand screw-threaded spindles p, p<0>. Bolts or pins o<3>, passing through holes in the blocks o' and through slots in the frames o<1>, carry bearings o for the spindles n<2>. A hand-wbeel p<1> on the spindle p is provided with a chain-wheel p<2> connected by a chain p<3> to a chain-wheel p<4> connected to the spindle p<0> through a clutch p<5>. The spindles p, p<0> are also provided with squared ends for independent adjustment. Longitudinal adjustment of the knives d on the spindles n<2> is effected by means of hand-wheels n<3> mounted as fixed nuts on screw - threaded parts of the spindles n<2>. Angular adjustment of the arms n<0> is effected by means of screw rods v, which are linked to arms u on the connecting-sleeves n<x>, and provided with hand-wheels in the form of nuts v<1>, and also with lock-nuts v<2>. During the first part of their cut, the knives d remain rigid, but during the latter part, they are moved in a curved path by means of the slots n<1>. In order to effect this movement, the carriers m are linked to arms q<1> of the spindles n<2>, and one arm q<1> of each knife is connected by a chain to a weight, and also to a chain s attached to the table b and passed over guide-pulleys s<1>, t<2> and under a weighted pulley t mounted in a slotted guide. The knives d are provided with additional knives for severing the neck piece from the shoulders, these additional knives being adjustably attached by means of screws and sets of screw holes. The hydraulic actuation is as follows : - The cylinder b<2> is supplied from a main B through a pipe b<3>, a valve chamber b<4>, and a pipe b<5>. The chamber b<4> is provided with an exhaust b<6> and a valve b<7> for controlling the admission to and exhaust from the cylinder b<2>. The main control of the valve b<7> is effected from a hand-lever f, which is linked to a bell-crank lever f<3> linked also to an arm f<6> keyed on a rocking spindle f<7>, another keyed arm f<8> of which is linked to an arm f<10> loose on a rocking spindle f<11> and formed integral with an arm f<13> linked to the valve b<7>. The cylinder g is supplied from the main B at the ends by pipes h, h<0>, Figs. 1 and 4, a valve h<1>, and a pipe h<2>. The valve rod h<3> is actuated by a link h<4> connected to an arm h<5>, which is loose on the spindle f<11>, and provided with clutch teeth for locking it to the spindle on operating a clutch h<6> controlled by a hand-lever h<7>. The spindle f<11> is rocked by a foot-lever i keyed on the spindle f<4> of the lever f<3>, through an arm i<1>, a link i<2>, and an arm i<3>. A tappet j on the crosshead g<2> is adapted to strike a stop j<1> on a rod j<2>, the front end of which is notched and normally engages a pin k on one arm k<1> of a bell crank keyed to a spindle k<2>, the other arm k<4> of the bell crank being linked to ah arm k<6> rigidly connected to the arms f<10>, f<13>. The rod j<2> is hinged to a slotted link j<4> engaging a pin l on a weighted lever l<1> connected by a cord, chain, &c. l<3> to the table b. When the table b reaches the limit of its upward movement, a chain w, connected to the table and to a lever w<1> on the shaft f serves to close the valve b<7>, and the levers f, i are then reversed. The cutting of the chine or loin may be effected independently, either through the handlever f or the foot-lever i, the arms f<10>, f<13> being locked to the shaft f<11> by means of clutch teeth x. and a half clutch x<1> in connection with the clutch h<6> and lever h<7>. The shaft f<11> is provided with a foot-lever y disposed at the side of the machine.